Followed a Twitter link from Warframe . . .

Warframe is celebrating its One Year Anniversary!

DEX FURIS – In celebration of Warframe’s First Year, and to Thank all who have helped build Warframe into what it is today, The Lotus is gifting each Tenno with a First Anniversary Edition of the DEX FURIS. This dual version features a Lotus-themed skin, high fire rate and accuracy and low recoil. Plus, it comes with a weapon slot and is super-charged with a catalyst.

To claim this gift, PS4 players simply log in to Warframe before 2:00pm EDT on April 21st. Open the inbox message and the weapon will automatically be added to your Arsenal.

EXCALIBUR PROTO-ARMOR SKIN – Also, marking this special occasion, the Excalibur Proto-Armor Skin has been unearthed. Available for a limited time only, this ancient skin is a reflection of Tenno past. Discovering the precise nature of this recently uncovered armored prototype has proved elusive. Initial attempts at dating the relic, point to ancient origins, perhaps even pre-dating the Orokin Empire. Visit the Market and add this Limited Time Skin to your Arsenal today. Available now through 2:00pm EDT, April 21st.

It would appear there are also a handful of changes and potential improvements to Warframe! This build will allow users to select their Region as well as potentially improve networking issues.